Exercise logic.propositional.consequence
Description
Prove that formula is a logical consequence of a set of formulas
Firsts
Rule logic.propositional.defimpl Location [0,0,0] Term "Just (TList [TList [TCon logic1.and [TCon logic1.or [TCon logic1.not [TVar \"p\"],TVar \"q\"],TCon logic1.implies [TVar \"r\",TVar \"s\"]]],TCon logic1.implies [TCon logic1.and [TVar \"p\",TVar \"r\"],TCon logic1.and [TVar \"q\",TVar \"s\"]]])" Focus "Just (TCon logic1.or [TCon logic1.not [TVar \"p\"],TVar \"q\"])" Environment Rule logic.propositional.defimpl Location [0,0,1] Term "Just (TList [TList [TCon logic1.and [TCon logic1.implies [TVar \"p\",TVar \"q\"],TCon logic1.or [TCon logic1.not [TVar \"r\"],TVar \"s\"]]],TCon logic1.implies [TCon logic1.and [TVar \"p\",TVar \"r\"],TCon logic1.and [TVar \"q\",TVar \"s\"]]])" Focus "Just (TCon logic1.or [TCon logic1.not [TVar \"r\"],TVar \"s\"])" Environment